Bell-ringer.



PATENTED AUG. 25, 19ans. 1. W. BRAGG'.

BELL RINGER. FP LIOTION FILED APR. 3, 1903` I0 MODEL.

'me mams PETERS C0, PMoTauTno.. wAsmNGToN. D. a

Patented August 25, 1903.

PATENT OFFICE.

ISAAC NV. BRAGG, OF ST. JOSEPH, MISSOURI.

BELL-amen.

SPECIFICATION forming part of Letters Patent No. 737,329, dated August 25, 1903.

. l Application filed April 3, 1903. Serial No. 150,889. (No.model.)

To a/ZZ whom t may concern:

Be it known that I, ISAAC W. BRAGG, a citizen of the United States, residing in St. J oseph, in the county of Buchanan and State of Missouri, have invented certain new and useful Improvements in Bell-Ringers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, formingpart of this speciication.

My invention'relates to an attachment to locomotives to rin g the bell by means Vol" com pressed air. 'l

My invention consists in features of novelty hereinafter fully described, and pointed out in the claim. a

Figure I is a perspective View lof my improved attachment.l Fig. II is a vertical longitudinal section. Fig. III is a horizontal section taken on line III III, Fig. II. Fig.

-IV is a horizontal section taken on line IV 1V, Fig. III. Fig. V is a detail vertical section showing the action of the cylinder and valve. Fig. VI is a horizontal section of the cylinder, taken on line VI VI, Fig. II. Fig. VII is a perspective view of the valve.

Referring to the drawings, 1 represents one of the standards that support the bell 2.

3 is a bracket, between the upwardly-extending arms 4 of which is supported a hori- V zontal valve 5, the valve being` held at one end by a set-screw 6, (see Fig. IIL) that passes through the outer arm of the bracket, and at the other end by having, its coneshaped end 7 fitted in a socket formedin the inner arm of the bracket. The valve has a live-air port 8, that communicates with an air-pipe 9 through a bore lOin the valve, and an opening 11, formed in the inner arm of the bracket, to which 'the pipe 9 is connected. The valve 5 hasexhaust-ports 12, one on either side of the port 8.

Mounted on the valve 5 is an upright cylinder 13, that is free to rock on the valve. The cylinder has a bore 14. to receive the valve, and a port 15 leads from the bore to the body of the cylinder, in which fits a pis.

ton 16, having a vstern 17, that extends out through the end 18 of the cylinder and bears against the wrist-pin 19 of the crank 2O of the bell, into line with which it is held by a yoke 21, projecting from the end 18 of the cylinder and straddling the wrist-pin 19. On the back of the valve 5 is a stop-pin or finger 22, that is adapted to come against set-screws 23, fitted in ears 24. on the outer arm 4 of the bracket.

The operation of the device is as follows: The bell being started in motion, air is turned on through the pipe 9 and enters the cylinder through the valve 5, thereby causing the piston 16 to exert its force on the bell-crank and causing the bell to be swung in both directions, the cylinder swinging out of a vertical'line, as shown by dotted lines in Fig. II. When theiinger 22 comes against one of the stops 23, the movement ot' the valve is stopped and the continued movement of the cylinder causes the port 15 to be brought opposite one ofthe exhaust-ports 12, when the air will escape from beneath the piston 16, which will fall by gravitylassisted, possibly, by the back swing of the crank 20 when the momentum of the bell is exhausted and it makes its return swing) to the bottom of .the cylinder. As the bell swings to the other side of a vertical line the cylinder does also, carrying the valvewith it until the finger 22 comes against the other stop 23. The rotary movement of the valve will then cease, and as the cylinder continues to turn the port 15 will be brought opposite the port 8 `again and air will enter the cylinder to throw the piston outwardly and give impetus to the bell. The further movementof the cylinder brings the port 15 opposite the other exhaust-port 12, into registry with which it will remain until the bell swings to the other side 'again and the linger 22 is brought intocontact again y with the first stop. By thus having the valve rock with the cylinder I get a long exhaust each time, so that the air willhave plenty of opportunity to escape frombeneath the piston and never check the return swing of the bell. V-

I do not claimtobe the iirst to mount the cylinder of a bell-ringer so that it will oscillate on a trunnion which acts as a valve; but I believe that I am the first to provide aconstruction wherein the trunnion, acting as a valve, has a free motion controlled by suitable stops, so that on the return motion of the bell the cylinder will carry the Valve with it until the bell has practically reached its provided with means for stopping it when it zo vertical position, thus keeping the exhausthas moved a distance in ear-.h direction with ports open and oering the least possible resistance to the return motion of the bell. the cylinder, substantially as and for the I claim as my inventionpurpose set forth. In a bell-ringer, the combination of a cylinder and valve adapted to swing together, ISAAC W' BRAGG the former havinsr a piston and means to In presence of cause it to swing with the bell and the latter C. W. DEAN, having inlet and exhaust port-s and being J. R. FARRELL. 

